<template>
  <div>
    <h1>当前求和为:{{ $store.state.sum }}</h1>
    <select v-model.number="n">
      <option value="1">1</option>
      <option value="2">2</option>
      <option value="3">3</option>
    </select>
    <button @click="increment">+</button>
    <button @click="decrement">-</button>
    <button @click="incrementOdd">当前求和为奇数再加</button>
    <button @click="incrementWait">等一等再加</button>


  </div>

</template>
<script>
export default {
  name: 'Count',
  data: function () {
    return {
      n: 1
    }
  },
  methods: {
    increment: function () {
      // 可以直接绕过actions commit后到mutations
      this.$store.commit('JIA', this.n)

    },
    decrement: function () {
      this.$store.commit('JIAN', this.n)
    },
    incrementOdd: function () {
      this.$store.dispatch('jiaOdd', this.n)

    },
    incrementWait: function () {
      this.$store.dispatch('jiaWait', this.n)
    },
  },


}

</script>
<style scoped>
button {
  margin-left: 5px;
}

</style>